The Nationals announced Thursday that infielder Trey Lipscomb went unclaimed on waivers and has been assigned outright to Triple-A Rochester. Washington also reinstated catcher Drew Millas, lefty and righties Trevor Williams and Josiah Gray from the 60-day injured list. The Nats currently have five openings on their 40-man roster. Lipscomb, 25, was the team's third-round pick in 2022. He's seen limited MLB time in each of the past two seasons, struggling to a .206/.272/.237 batting line in 215 turns at the plate.